Manufacture of pipes



no. 623,590. Patented Apr. 25, I899. E. F. BADGLEY.

. MANUFACTURE OF PIPES.

(Application filed Apr. 29, 1893.)

(No Model.)

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NI'TE *rarns EUGENE F. BADGLEY, OF SAN FRANCISCO, CALIFORNIA.

MANUFACTURE OF PIPES.

SPECIFICATION forming part of Letters Patent No. 623,590, dated April 25, 1899.

Application filed April 29, 1893. Serial No. 472,408. (No model.)

To all whom it may concern.-

Be it known that .I, EUGENE F. BADGLEY, a citizen of the United States, residing atSan Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in the Manufacture of Pipes; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in apparatus for m anfacturing that class of pipes or conduits which are formed by covering a flexible material with some bituminous or similar plastic substance and winding the same upon a mandrel; and it consists in the construction, novel combination, and adaptation of parts hereinafter described, and particularly pointed out in the claims appended.

In the accompanying drawings,'Figure 1 is a vertical longitudinal section of my improved apparatus, and Figs. 2 and 3 are views illustrating two forms of pipes or conduits made with the same.

Referring by letterto said drawings, A indicates a tank or receptacle containing the compound for forming the pipes or conduits, which com pound consists of maltha, bitumen, asphaltum, or residuum of black petroleum and suitable silicates or other composite mat-' ter, combined in suitable proportions according to the tensile strength to be given to said pipes or conduits. This tank or receptacle is heated by a furnace A, upon which it is -mounted, and by pipes or, which are connected with a source of steam-supply. The maltha, bitumen, asphaltum, or residuum of black petroleum are placed first in the tank A, and the silicates or other composite matters, which have been previously heated, are then added. This previous heating of the silicates is desirable, as I have found from experience that when so heated they mix with the other ingredients much better than when they are cold.

Upon the side walls of the tank A, on the inside, are provided vertical ways 3 between which are mounted bearing-blocks .2, to which are connected the ends of a bail z. The blocks .2' aiford bearings for the trunnions or shaft of a roller a, which is designed to guide the bail z with an ordinary block and tackle.

(Not shown.)

The flexible material B, which consists, 7

preferably, of perforated paper made from rags or of some textile fabric, is wound in a continuous web upon a roller 0, journaled in bracketsd, and it is led from said roller 0 between or over three (more or less) rollers D, journaled in asuitable bearing rising from the tank, past an idler-roller E and beneath the roller a and through the compound. The rollers D are hollow and are heated in any approved manner, as by gas-jets, and they are designed to smooth the flexible material B and render the same free from moisture, as Ihave found by experience that when the flexible material is rough and damp the compound will not cling thereto with the same tenacity as it does when the flexible material is smooth and dry. From the tank or receptacleA the flexible material, with its accompanying compound, is carried around a rotary mandrel F or the like until the requisite number of layers have been formed, when the paper or cloth is cut and the mandrel removed to give place to a new mandrel for forming another pipe, as will be presently described. The mandrel F is preferably formed from nickel or may be formed of any met-a1 plated with nickel, and it is removably journaled in suitable standards, as c, which are connected to the tank, as shown. After the mandrel F, with the pipe thereon, is removed from the standards 0 it is placed upon rollers I in a water-pan H, containing cold water. This water-pan is supported by brackets e, resting upon the furnace against the tank A. The rollers I are covered with cloth 4 cling more closely together, thus preventing the objectionable scaling or peeling so often experienced. In order to press the layers of the pipe still more closely together and render said pipe even throughout its length, I provide bail-levers G, which engage the trunnions of the mandrel, as shown, and are preferably weighted. These levers have one of their ends fulcru med on standards 72/, which are provided with a series of perforations 1), so that the fulcrum end of said levers may be raised or lowered to suit. The mandrel, with the pipe thereon, it will be observed, can readily be transferred from the standards 0 to the rollers I by means of these bail-levers, which may be swung or turned over for the purpose, so as to rest upon the adjacent upper edge of the tank A under the trunnions of the mand rel, the pivots of the levers beingthen placed in the lowest perforation of the series 1). The mandrel having been lifted from its standards and carried or rolled out until its trunnions engage the arched part of the bail-levers, the free end of the latter is raised and the mandrel and pipe are thereupon dropped or slid down onto the rollers in the water-pan. This done, the fulcrum end of the levers G is adj usted to suit the diameter of the pipe on the mandrel and the latter is rotated, as hereina'bove described, with the levers bearing upon its trnnnions, as illustrated. After the mandrel, with the pipe thereon, is removed from the water-pan II it is plunged in cold water, when the completed pipe may be readily taken off and the mandrel replaced in its bearings in the standards 0 to form another pipe.

In Fig. 3 of the drawings is illustrated a form of pipe which, in addition to the compound specified and the flexible inaterial,comprises a wrapping of wire K, which serves to render the pipe very strong and capable of resistinggreatpressure. In makingthisform of pipe I take a pipe, as illustrated in Fig.

:3, while it is on the mandrel F, andafter plungingit in the cold bath or chillingit on the wet rollers, as described, I wrap it from one end to the other with the wire K, after which I reinount the mandrel in its bearings in the standards 0 and wrap a layer or more, according to pressure wanted, of the compound covered paper around the wire, so as to cover, protect, and preserve the same. A pipe or conduit thus made is most durable, and, like the other one previously described, is not liable to scale or peel nor to be affected by climatic changes.

Having described my invention, what I claim is 1. In an apparatus for making pipes, the combination of a water-pan, rollers journaled in said pan and adapted to receive a mandrel upon which is wound flexible material coated with an adhesive compound, standards, and bail-levers fulcrunied on said standards and arranged to swing on opposite sides thereof first to receive the mandrel and carry it to the water-pan and subsequently to press it upon the rollers therein, substantially as described.

2. In an apparatus for making pipes comprising a heated tank containing a plastic compound and a mandrel arranged to take on a web of flexible material passed through this compound, the combination of a water-pan, rollers dipping in the water contained in said pan, standards located between the water-pan and tank, and levers fulcrumed on said standards so as to be capable of swinging on opposite sides thereof, first to receive the mandrel with the web thereon from the tank, then to transfer the same to the rollers in the waterpan, substantially as described.

3. In an apparatus for making pipes comprising a furnace, a tank thereon containing a plastic compound, and a mandrel mounted on said tank and adapted to take on a web of flexible material passed through the compound therein, the combination of a bracket resting on said furnace and against said tank near said mandrel, a water-pan supported by said bracket, rollers arranged to dip in the water contained in said pan, standards rising between the water-pan and tank, and levers adj ustably fulcrumed to said standards and swinging in opposite directions to receive the mandrel with the web from the tank, transfer it to the rollers in the water-pan, and firmly hold it thereon, substantially as herein disclosed.

In testimony whereof I affix my signature in presence of two witnesses.

EUGENE F. BAD GLEY.

\Vitnesses:

LEE D. CRAIG, WALTER R. CRAIG. 

